g++-10 -Wall -lm -static -DEVAL -o paint -O2 paint.cpp grader.cpp -std=c++17
gcc-10 -Wall -lm -static -DEVAL -o paint -O2 paint.c grader.c
g++-10 -Wall -lm -static -DEVAL -o paint -O2 paint.cpp grader.cpp
g++-10 -Wall -lm -static -DEVAL -o paint -O2 paint.cpp grader.cpp -std=c++11
g++-10 -Wall -lm -static -DEVAL -o paint -O2 paint.cpp grader.cpp -std=c++14